Protect against null mesh in MooseMesh::prepared

jain651 · Apr 19, 2021 · 4462046 · 4462046
1 parent af68f02
commit 4462046
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/framework/src/mesh/MooseMesh.C b/framework/src/mesh/MooseMesh.C
@@ -2493,7 +2493,10 @@ MooseMesh::prepared(bool state)
     mooseError("We don't have any right to tell the libmesh mesh that it *is* prepared. Only a "
                "call to prepare_for_use should tell us that");
 
-  _mesh->set_isnt_prepared();
+  // Some people may call this even before we have a MeshBase object. This isn't dangerous really
+  // because when the MeshBase object is born, it knows it's in an unprepared state
+  if (_mesh)
+    _mesh->set_isnt_prepared();
 
   // If the libMesh mesh isn't preparead, then our MooseMesh wrapper is also no longer prepared
   _moose_mesh_prepared = false;